Seiko Cal. 6690 - 988

Seiko 6690-988

The 6690-988 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-b55c841118c9]

Also known as: Turtle, Bellmatic

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
11.4mm
Lug Width
22mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
110m
Dial Color
Green
Jewels
29j
Frequency
28,800 bph
Power Reserve
65 hours
Year
1970

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